#define ReadNXTPowerMeterPresentVoltage ( _port,
_i2caddr,
_out,
_result   )     __MSReadValue(_port, _i2caddr, NXTPM_REG_VOLTAGE, 2, _out, _result)

Read NXTPowerMeter present voltage.

Read the mindsensors NXTPowerMeter device's present voltage value. The port must be configured as a Lowspeed port before using this function.

Parameters:
_port The sensor port. See NBC Input port constants.
_i2caddr The sensor I2C address. See sensor documentation for this value.
_out The NXTPowerMeter present voltage.
_result A status code indicating whether the operation completed successfully or not. See TCommLSCheckStatus for possible Result values.

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